Control unit for earpiece



FIG. 1 is a perspective view a control unit for earpiece showing my new design.

FIG. 2 is another perspective view thereof.

FIG. 3 is a front view thereof.

FIG. 4 is left side view thereof, a right side view being a mirror image of the left side view.

FIG. 5 is rear view thereof.

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a top view thereof.

The broken lines form no part of the claimed design. 

CLAIM The ornamental design for a control unit for earpiece, as shown and described. 